Please help 3.At what Celsius temperature does 10.5 g of methane gas (CH4) under a pressure of 1.77 atm occupy 35.6 L?

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease

Which one of the following is an oxidation-reduction reaction? naoh + hno3 --> h2o + kno3 naoh + hno3 --> h2o + kno3 so3 + h2o --> h2so4 cacl2 + na2co3 --> caco3 + 2 nacl ch4 + 2 o2 --> co2 + 2 h2o al2(so4)3 + 6 koh --> 2 al(oh)3 + 3 k2so4